CN101745383A - Deeply hydrodearomatized catalyst and preparation method - Google Patents
Deeply hydrodearomatized catalyst and preparation method Download PDFInfo
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Abstract
The invention relates to a type of deeply hydrodearomatized catalyst and a preparation method. Slurry containing 1 percent to 5 percent by weight of aluminium ion, 40 percent to 60 percent by weight of silicon dioxide and 5 percent to 15 percent by weight of ammonium ion is prepared; the slurry is dried under the temperature of 100 DEG C to 200 DEG C; the produced powder is mixed with pseudo-boehmite with the total pore volume of 0.4ml/g to 0.45ml/g and the surface area of 200m2/g to 240m2/g, and the produced mixture is shaped, dried under the temperature of 100 DEG C to 150 DEG C and baked under the temperature of 450 DEG C to 530 DEG C, so that carrier is obtained; the aqua regia of Pt and Pd, the volume of which is equal to the water absorption capacity of the carrier, is added into the carrier, and the carrier is dried under the temperature of 80 DEG C to 120 DEG C and baked under the temperature of 450 DEG C to 480 DEG C, so that the catalyst is obtained; Pt accounts for 0.1 percent to 0.5 percent of the weight of the catalyst, and Pd accounts for 0.3 percent to 0.8 percent of the weight of the catalyst; and the catalyst can meet the requirement of the deep hydrodearomatization of naphthenic base oil with the viscosity from 8mm2/s to 700mm2/s under the temperature of 40 DEG C and from 2mm2/s to 30mm2/s under the temperature of 100 DEG C.
Description
Technical field
The present invention relates to a kind of hydrofining technology catalyst and preparation method, relate in particular to catalytic hydro-dearomatization catalyst and preparation method.This catalyst is suitable for the hydrogenation process of aromatic hydrocarbons, is particularly suitable for containing the hydrogenation aromatics-removing and the decolorization of the cycloalkyl high viscosity white oil and the solvent naphtha of heavy aromatics.
Background technology
Under aerobic conditions, it is very sensitive to daylight, ultraviolet radiation that hydrotreatment generates oil, is exposed to cause oil product appearance property instability in daylight and the air, and the oil product color can be deepened, and produces precipitation when serious.
Present domestic quality is the naphthenic rubber oil product preferably, still there is deficiency aspect light, the thermostability energy, its anti-yellowing property can only reach 4 grades, do not reach 5 grades of nondiscolouring requirements, thereby can only be as the filling oil of the light-colour rubber goods of non-white, can not be as the filling oil of the good white product of rubber and plastic of anti-yellowing property.
Solve hydrogenated base oil photo and thermal stability problem, it is saturated that effective method carries out deep hydrogenation aromatic hydrocarbons to it exactly.Adopt conventional Hydrobon catalyst, viscosity is big, molecular weight is high, the many characteristics of condensed ring structure because the fault of construction of catalyst and cycloalkyl viscous crude cut have, it is saturated to cause polycyclic aromatic hydrocarbon in the big molecule cut to be difficult to obtain sufficient hydrogenation, therefore needs to adopt the catalyst of special construction to improve selection of catalysts and activity stability.
The domestic exploitation that is used for the deeply hydrodearomatized noble metal catalyst of lubricating oil still is in the starting stage at present, and the noble metal hydrogenation catalyst at the heavy grease deeply de-aromatizing does not appear in the newspapers yet specially.What patent application CN1769379A, CN1140748A, CN1070215A all related to is the common metal catalyst of hydrogenation technique, and the defective of this catalyst is that activity is lower, can not effectively solve the deeply de-aromatizing problem of lubricating oil; ZL98117511.2, ZL90100187.2 all relate to platiniferous and the bimetallic noble metal hydrogenation catalyst of palladium, but because the Al in these two kinds of catalyst carriers
2O
3Content is lower, all is no more than 30 heavy %, thus the acidity of this catalyst a little less than, only be suitable for the hydrogenation process of light-end products, distillate, and be not suitable for the deeply hydrodearomatized process of heavy grease.
External lubricating oil deeply de-aromatizing noble metal catalyst and technology have been mature technology, trend towards in recent years at the different catalyst of different material feature development, be mainly reflected in the difference that catalyst pores structure, aperture, pore volume aspect and carrier are formed, be characterized in that a kind of catalyst has the structure of macropore, mesopore, aperture simultaneously, hydrogenation activity elemental constituent changes little, is mainly noble metal platinum and palladium.Relate to two kinds of catalyst of a kind of macropore amorphous silicon aluminium and a kind of mesopore amorphous silicon aluminium carrier-supported precious metal as US5393408, need adopt two-stage hydrogenation, just can reach the purpose that removes aromatic hydrocarbons the hydrogenation lube base oil; US4263127, US4325804 disclose a kind of method of hydrogenation preparing food-level white oil, and its catalyst that relates to is a noble metal catalyst, and the carrier of this catalyst is an aluminium oxide, and aided metal is silicon, zinc or magnesium.
Summary of the invention
The purpose of this invention is to provide a kind of load platinum palladium can be deeply hydrodearomatized Nobel-metal catalyst preparation method.The carrier of this catalyst is the amorphous silicon alumina supporter, on with a kind of carrier, has the suitable large, medium and small pore structure that distributes simultaneously, make the catalyst prepare have higher hydrogenation aromatics-removing activity, be particularly suitable for containing the hydrogenation aromatics-removing and the decolorization of the cycloalkyl high viscosity white oil and the solvent naphtha of heavy aromatics.
A kind of deeply hydrodearomatized catalyst provided by the invention, the specific area that it is characterized in that described catalyst is 200～350cm
2/ g, pore volume are 0.6～1.0ml/g, and average pore size is at 5～15nm, wherein, the aperture be the pore volume of 100～1000nm account for total pore volume 8%～20%.
The main active component of this catalyst is Pt, and auxiliary agent is Pd, and carrier is amorphous silicon alumina supporter, wherein SiO
2Content is 40%～60% of vehicle weight, Al
2O
3Content is 40%～60% of vehicle weight.
The content of catalyst master active component Pt and auxiliary agent Pd is respectively 0.1～0.5% and 0.3～0.8% of catalyst weight.
Two of technical scheme provided by the invention is the preparation method of above-mentioned deeply hydrodearomatized catalyst.This method is that the solution with a kind of aluminum contained compound mixes with a kind of solution of silicon-containing compound, obtains the slurries of silicoaluminate, after filtration, washing, drying obtain the sial powder; This powder obtains the carrier of this catalyst after kneaded and formed, roasting, can obtain deeply hydrodearomatized catalyst after utilizing conventional step impregnation method carried metal.
Described catalyst carrier preparation method follows these steps to carry out:
(1) aqueous solution is heated to 60 ± 2 ℃ after, a kind of solution of aluminum contained compound is contacted simultaneously with a kind of solution and precipitating reagent of silicon-containing compound, obtain the slurries of silicoaluminate, this aluminum contained compound is a kind of in aluminium chloride, aluminum sulfate, the aluminum nitrate, and the aluminium ion concentration in this aluminum contained compound aqueous solution is 1～5wt%; Silicon-containing compound is a kind of in industry water glass, the sodium metasilicate, and dioxide-containing silica is 20～60wt% in this silicon-containing compound aqueous solution; Precipitating reagent is the aqueous solution of ammoniacal liquor, ammonium carbonate or carbonic hydroammonium, and the concentration of ammonium ion is 5～15wt% in this solution.
(2) the silicoaluminate slurries that step 1 obtained can obtain pore volume after overaging, filtration, washing, drying be 0.7～1.1ml/g, and specific area is 400-550m
2/ g, pore size distribution range is the powder of 1.5～500nm, wherein, the aperture accounts for 85～90% of total pore volume at the pore volume of 3-15nm.Ageing process in the above-mentioned powder preparation process is to carry out in the slurries of the silicoaluminate of above-mentioned aluminium ion, silica, ammonium ion, and wherein, aging temperature is: 60～90 ℃, and ageing time: 0.5～2h; PH value: 7.4～7.6.The filtration of described powder, washing methods are: use with the isopyknic at least deionized water cyclic washing of aged solution, filter 5～7 times; Powder after the washing dry 10～20h under 100～200 ℃ of temperature gets final product.
(3) carrier moulding: is that 0.4～0.45ml/g, surface area are 200～240m with dried powder with total pore volume
2After the boehmite of/g mixes, add binding agent extruded moulding after mediating.Employed binding agent is Ludox (SiO
2), Te Fulong (PTFE), Nafion, sesbania powder, γ-Al
2O
3, in the nitric acid one or more, consumption is 1～5% of a shaping carrier weight; The adding weight of boehmite is 10～50% of shaping carrier weight.Mixed powder is through mediating, behind the extruded moulding, air atmosphere inner drying 2～8 hours, being warming up to 450～530 ℃ of roastings then and promptly obtaining shaping carrier after 2～6 hours under 100～150 ℃.
Carrier after the moulding utilizes low temperature N
2The absorption instrument is measured mesopore volume, specific area, pore size distribution, utilizes mercury injection apparatus to do the analysis of macropore pore structure, and the shaping carrier physical property that records is: specific area 300～400cm
2/ g; Pore volume 0.5～0.8ml/g; Average pore size is at 5～12nm, and wherein, the aperture accounts for 5%～15% of total pore volume at the pore volume of 100～1000nm.
Catalyst master active component Pt, auxiliary agent Pd is that the form with different presomas adopts the method for conventional equal-volume step impregnation to load on the carrier, wherein the content of main active component Pt accounts for 0.1～0.5% of catalyst weight, what the content of auxiliary agent Pd accounted for catalyst weight is 0.3～0.8%, the carrying method of this reactive metal is: in shaping carrier, add prepare in advance with the isopyknic Pt of carrier water absorption, the wang aqueous solution of Pd metal and deionized water, leave standstill 10～20h, in the air atmosphere behind 80～120 ℃ of drying 4～6h at 450～480 ℃ of roasting 4～6h, obtain carried metal Pd, the deeply hydrodearomatized catalyst of Pt.
The catalyst that the present invention relates to passes through at reaction pressure 7.0～15.0MPa, volume space velocity 0.3～0.9h
-1, under 200～300 ℃ of reaction temperatures and hydrogen to oil volume ratio 500～1000: 1 condition, adopt 100ml fixed bed reactors evaluating apparatus to estimate.The evaluation flow process is: the above-described hydrogen to oil volume ratio of the oil of metering and hydrogen enters the preheating section of high-pressure reactor, catalyst fixed bed layer through constant temperature reacts again, product enters the high score jar and carries out gas-liquid separation, collects through hydrorefined product and carries out rapid analysis.
Hydrotreated product adopts following method and project evaluation activity of such catalysts: viscosity ASTMD445, density SH/T0604, ultraviolet absorptivity GB/T11081, forms SH/0753.
Catalyst of the present invention is to consider on the high characteristic basis of cycloalkyl material viscosity height, condensed ring fractional saturation arene content, prepare have the pore size distribution broad, the big higher amorphous silicon aluminium carrier of pore size distribution, catalyst with this structure both can satisfy the hydrofinishing of less molecule, the hydrofinishing of hyperviscosity cycloalkyl distillate can be satisfied again, the contamination resistance of catalyst can be effectively improved simultaneously; This catalyst can satisfy 40 ℃ of viscosity from 8～700mm
2/ s, 100 ℃ of viscosity are from 2～30mm
2The hydrogenation deeply de-aromatizing requirement of the naphthenic base oils of/s, utilize this catalyst that the naphthenic base oils of above-mentioned viscosity is carried out hydrofinishing after, can prepare the food-level white oil that satisfies the GB4853-1994 standard.
The following examples will the invention will be further described.
The specific embodiment
Embodiment 1: the preparation of this example explanation amorphous aluminum silicide powder.
Aluminium chloride is added in the distilled water, be stirred to dissolving, obtain the aluminum contained compound aqueous solution (a), aluminium ion concentration is 2wt% in the solution; Commercially available ammoniacal liquor is added an amount of distilled water diluting, obtain containing the precipitant solution that ammonium ion concentration is 10wt% (b); Industry water glass is added an amount of distilled water diluting, obtain the solution that dioxide-containing silica is 60wt% (c).
Get a steel retort, add distilled water and stirring in jar, after being heated to 60 ℃, open the valve that has solution (a) and container (b) respectively simultaneously, keep reaction temperature, the control flow makes the pH value of reaction system remain on 7.0-7.2, the neutralization reaction time finishes in 30min, is metered into the amount of solution.
(a) after solution reaction finishes, stop to add solution (b), by finally containing SiO
2Amount begins to add solution (c), after adding in 5 minutes, and the ageing process of beginning system.Keep the pH value 7.4～7.6, temperature is 90 ℃, behind the aging 0.5h, filters colloidal solution and obtains wet cake, with the filter cake washing, filters and obtains filter cake (d).After washing, filter filter cake 5-6 time repeatedly, 110 ℃ of oven dry 12 hours down, pulverizing, sieving promptly obtains the amorphous aluminum silicide product with filter cake.
By said process, can obtain powder F
1, its character is shown in Table 1.
Embodiment 2～9:
According to raw material shown in the experimental procedure of embodiment 1 and the table 1, operating condition operation, can obtain the powder F of different in kind
2, F
3, F
4, F
5, F
6, F
7, F
8, F
9Resulting powder property is shown in Table 1.
The physicochemical property of table 1 embodiment 1 resultant powder
| Project | Aluminum contained compound | Aluminium ion wt% | Silicon-containing compound | Silica wt% | Precipitating reagent | Ammonium ion wt% | Aging temperature ℃ | Ageing time h | ??S iO 2, heavy % | ??BET，??m 2/g | Total pore volume ml/g | 3～15nm pore volume/total pore volume, % |
| ??F 1 | Aluminium chloride | ??2 | Waterglass | ??60 | Ammoniacal liquor | ??10 | ??90 | ??0.5 | ??20 | ??407.01 | ??1.10 | ??5 |
| Project | Aluminum contained compound | Aluminium ion wt% | Silicon-containing compound | Silica wt% | Precipitating reagent | Ammonium ion wt% | Aging temperature ℃ | Ageing time h | ??S iO 2, heavy % | ??BET，??m 2/g | Total pore volume ml/g | 3～15nm pore volume/total pore volume, % |
| ??F 2 | Aluminum sulfate | ??1 | Waterglass | ??50 | Ammoniacal liquor | ??10 | ??90 | ??0.5 | ??20 | ??408.20 | ??0.92 | ??10 |
| ??F 3 | Aluminum nitrate | ??5 | Waterglass | ??40 | Ammoniacal liquor | ??10 | ??90 | ??0.5 | ??20 | ??407.20 | ??0.87 | ??8 |
| ??F 4 | Aluminium chloride | ??4 | Sodium metasilicate | ??30 | Ammoniacal liquor | ??15 | ??90 | ??0.5 | ??20 | ??410.21 | ??0.88 | ??7 |
| ??F 5 | Aluminium chloride | ??3 | Sodium metasilicate | ??30 | Carbonic hydroammonium | ??10 | ??75 | ??1.0 | ??60 | ??432.20 | ??0.79 | ??6 |
| ??F 6 | Aluminium chloride | ??2 | Sodium metasilicate | ??20 | Ammonium carbonate | ??5 | ??75 | ??1.0 | ??40 | ??433.07 | ??0.74 | ??12 |
| ??F 7 | Aluminium chloride | ??5 | Waterglass | ??20 | Ammoniacal liquor | ??10 | ??75 | ??2.0 | ??40 | ??453.08 | ??0.85 | ??14 |
| ??F 8 | Aluminium chloride | ??1 | Waterglass | ??50 | Ammoniacal liquor | ??15 | ??60 | ??1.0 | ??40 | ??443.67 | ??0.70 | ??11 |
| ??F 9 | Aluminium chloride | ??3 | Waterglass | ??60 | Ammoniacal liquor | ??5 | ??60 | ??2.0 | ??40 | ??402.12 | ??0.76 | ??9 |
Embodiment 10: the moulding of this example explanation carrier.
Is that 0.43ml/g, surface area are 230m with resulting powder in the example 1 with total pore volume
2The boehmite of/g (f) mixes, and the boehmite addition is 15% of a shaping carrier weight, adds 3% adhesive silicon sol (g) of shaping carrier weight again, extruded moulding after mediating.Mixed powder is through mediating, behind the extruded moulding, air atmosphere inner drying 5 hours, being warming up to 450 ℃ of roastings then and promptly obtaining shaping carrier Z after 6 hours under 120 ℃
1, resultant carrier character is shown in Table 2.
Embodiment 11～16:
According to raw material shown in the experimental procedure of embodiment 10 and the table 2, operating condition operation, can obtain the carrier Z of different in kind
2, Z
3, Z
4, Z
5, Z
6, Z
7Resultant carrier character is shown in Table 2.Wherein, the code name of binding agent corresponding to product is: Te Fulong (h), Nafion (i), sesbania powder (j), γ-Al
2O
3(k), nitric acid (l).
The physicochemical property of table 2 embodiment 2 resultant carriers
| Project | F content, wt% | F pore volume ml/g | F surface area m 2/g | Binding agent, wt% | Powder | Baking temperature ℃ | Sintering temperature ℃ | Roasting time h | ??BET，??m 2/g | Total pore volume ml/g | 100～1000nm pore volume/total pore volume, % |
| ??Z 1 | ?10 | ??0.40 | ??235 | ??g∶2 | ??F 6 | ??120 | ??450 | ??6 | ??353.67 | ??0.73 | ??6 |
| ??Z 2 | ?20 | ??0.45 | ??230 | ??i∶2??l∶3 | ??F 8 | ??110 | ??480 | ??5 | ??332.20 | ??0.73 | ??8 |
| Project | F content, wt% | F pore volume ml/g | F surface area m 2/g | Binding agent, wt% | Powder | Baking temperature ℃ | Sintering temperature ℃ | Roasting time h | ??BET，??m 2/g | Total pore volume ml/g | 100～1000nm pore volume/total pore volume, % |
| ??Z 3 | ?25 | ??0.42 | ??220 | ??h∶1 | ??F 5 | ??130 | ??470 | ??3 | ??307.01 | ??0.68 | ??12 |
| ??Z 4 | ?30 | ??0.40 | ??200 | ??k∶1??l∶3 | ??F 7 | ??150 | ??500 | ??5 | ??311.20 | ??0.70 | ??10 |
| ??Z 5 | ?35 | ??0.42 | ??210 | ??j∶2??l∶3 | ??F 6 | ??100 | ??530 | ??2 | ??353.08 | ??0.72 | ??14 |
| ??Z 6 | ?40 | ??0.43 | ??220 | ??i∶2 | ??F 7 | ??120 | ??460 | ??4 | ??311.05 | ??0.68 | ??15 |
| ??Z 7 | ?50 | ??0.44 | ??240 | ??1∶5 | ??F 5 | ??140 | ??510 | ??3 | ??330.74 | ??0.77 | ??7 |
Embodiment 17:
This example explanation Preparation of catalysts.
Adopt the method for conventional incipient impregnation, with PdCl
2(analyzing pure) and Pt (NH
4)
4Cl
2The wang aqueous solution of (analyzing pure) is by final catalyst metals amount (Pt 0.15wt%; Pd 0.80wt%) step impregnation is in type carrier Z
6On, leave standstill 12h, to dry 10 hours for 110 ℃ in the process air atmosphere, roasting promptly obtained preformed catalyst KC-1 in 3 hours in 450 ℃ of air atmospheres, and the physicochemical property of obtained catalyst is as shown in table 3.
Embodiment 18～24:
According to raw material shown in the experimental procedure of embodiment 17 and the table 3, operating condition operation, can obtain preformed catalyst KC-2, KC-3, KC-4, KC-5, KC-6, KC-7, KC-8, the physicochemical property of obtained catalyst is as shown in table 3.
Table 3 embodiment 3 gained are from the physicochemical property of controlling catalyst
Embodiment 25:
The evaluation method of present embodiment explanation catalyst.
Catalyst passes through at reaction pressure 7.0MPa, volume space velocity 0.9h
-1, under 500: 1 conditions of 200 ℃ of reaction temperatures and hydrogen to oil volume ratio, adopt 600ml fixed bed reactors evaluating apparatus to estimating from controlling catalyst, the loadings of catalyst is 200ml, raw material is a feedstock oil 1.The evaluation flow process is: the above-described hydrogen to oil volume ratio of the oil of metering and hydrogen enters the preheating section of high-pressure reactor, catalyst fixed bed layer through constant temperature reacts again, product enters the high score jar and carries out gas-liquid separation, collects through hydrorefined product liquid and carries out rapid analysis.
The character of the used reaction condition of evaluating catalyst, feedstock oil and hydrogenation product liquid sees Table 4, shown in the table 5, table 6.
Embodiment 26～28:
According to raw material shown in the experimental procedure of embodiment 25 and table 4, the table 5, process conditions operation, can obtain the evaluation result of feedstock oil 2, feedstock oil 3, feedstock oil 4, see Table shown in 7～9.
Table 4 evaluating catalyst feedstock oil character
Table 5 evaluating catalyst process conditions
| Reaction condition | Feedstock oil 1 | Feedstock oil 2 | Feedstock oil 3 | Feedstock oil 4 |
| Pressure, MPa | ??7.0 | ??15.0 | ??15.0 | ??15.0 |
| Air speed, h -1 | ??0.9 | ??0.9 | ??0.5 | ??0.3 |
| Temperature, ℃ | ??200 | ??220 | ??240 | ??260 |
| Hydrogen-oil ratio, v/v | ??500∶1 | ??500∶1 | ??1000∶1 | ??1000∶1 |
Table 6 feedstock oil 1 each evaluating catalyst test back end hydrogenation product liquid character
Table 7 feedstock oil 2 each evaluating catalyst test back end hydrogenation product liquid character
Table 8 feedstock oil 3 each evaluating catalyst test back end hydrogenation product liquid character
Table 9 feedstock oil 4 each evaluating catalyst test back end hydrogenation product liquid character
Claims (5)
1. the preparation method of a deeply hydrodearomatized catalyst, it is characterized in that: main active component is Pt, and auxiliary agent is Pd, and carrier is the amorphous silicon alumina supporter, SiO
2Content is 40～60% of vehicle weight, Al
2O
3Content is 40～60% of vehicle weight;
Described method for preparing catalyst follows these steps to carry out:
(1) aqueous solution is heated to 60 ± 2 ℃ after, the aqueous solution of aluminum contained compound and the aqueous solution of silicon-containing compound are contacted simultaneously with precipitating reagent, obtain the slurries of silicoaluminate, the aluminium ion concentration in the aluminum contained compound aqueous solution is 1～5wt%; Dioxide-containing silica is 40～60wt% in the silicon-containing compound aqueous solution; Precipitating reagent is the aqueous solution of ammoniacal liquor, ammonium carbonate or carbonic hydroammonium, and the concentration of ammonium ion is 5～15wt% in the aqueous solution;
(2) the silicoaluminate slurries that step (1) is obtained through overaging, filtration, washing, dry aging temperature are: 60～90 ℃, and ageing time: 0.5～2h; The pH value: 7.4～7.6, usefulness and the isopyknic at least deionized water cyclic washing of aged solution, filtration 5～7 times; Powder after the washing is dry 10～20h under 100～200 ℃ of temperature;
(3) be that 0.4～0.45ml/g, surface area are 200～240m with the dried powder of step (2) and total pore volume
2After the boehmite of/g mixes, add binding agent extruded moulding after mediating, under 100～150 ℃,, be warming up to 450～530 ℃ of roastings then and obtain shaping carrier after 2～6 hours air atmosphere inner drying 2～8 hours; The binding agent consumption is 1～5% of a shaping carrier weight; The adding weight of boehmite is 10～50% of shaping carrier weight;
(4) in shaping carrier, add that prepare in advance and wang aqueous solution and the deionized water isopyknic Pt of carrier water absorption, Pd metal, leave standstill in 10～20h, the air atmosphere behind 80～120 ℃ of drying 4～6h at 450～480 ℃ of roasting 4～6h, obtain the deeply hydrodearomatized catalyst of carried metal Pd, Pt; The content of Pt accounts for 0.1～0.5% of catalyst weight, and what the content of auxiliary agent Pd accounted for catalyst weight is 0.3～0.8%.
2. according to the preparation method of the described deeply hydrodearomatized catalyst of claim 1, it is characterized in that: described aluminum contained compound is aluminium chloride, aluminum sulfate or aluminum nitrate.
3. according to the preparation method of the described deeply hydrodearomatized catalyst of claim 1, it is characterized in that: described silicon-containing compound is silica, industry water glass or sodium metasilicate.
4. according to the preparation method of the described deeply hydrodearomatized catalyst of claim 1, it is characterized in that: described employed binding agent is Ludox (SiO
2), Te Fulong (PTFE), Nafion, sesbania powder, γ-Al
2O
3, in the nitric acid one or more.
5. according to the deeply hydrodearomatized catalyst of the preparation method of the described deeply hydrodearomatized catalyst of claim 1 preparation, it is characterized in that: the content of described catalyst Pt accounts for 0.1～0.5% of catalyst weight, the content of auxiliary agent Pd accounts for 0.3～0.8% of catalyst weight, SiO
2Content is 40～60% of vehicle weight, Al
2O
3Content is 40～60% of vehicle weight; Specific area is 200～350cm
2/ g, pore volume are 0.6～1.0ml/g, and average pore size is at 5～15nm, and the pore volume of 100～1000nm accounts for 8%～20% of total pore volume.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108212078A (en) * | 2018-01-16 | 2018-06-29 | 安徽海谱环保工程有限公司 | A kind of zeolite adsorbent preparation method and zeolite adsorbent |
| ES2700899R1 (en) * | 2017-08-18 | 2019-06-13 | China Petroleum & Chem Corp | Catalyst to produce light aromatic compounds with heavy aromatics, method to prepare the catalyst and use it |
| CN111495400A (en) * | 2020-04-24 | 2020-08-07 | 洛阳金达石化有限责任公司 | Preparation method of hydrogenation dearomatization catalyst |
| CN116060112A (en) * | 2021-10-29 | 2023-05-05 | 中国石油化工股份有限公司 | Hydrodearene catalyst and preparation method and application thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4325804A (en) * | 1980-11-17 | 1982-04-20 | Atlantic Richfield Company | Process for producing lubricating oils and white oils |
| CN1020283C (en) * | 1990-01-19 | 1993-04-14 | 中国石油化工总公司石油化工科学研究院 | Catalyst used for hydrogenation of distilled oil fraction |
| CN1081223C (en) * | 1998-08-18 | 2002-03-20 | 中国石油化工集团公司 | Process for preparing bimetallic catalyst containing pt and pd |
-
2008
- 2008-12-08 CN CN2008102389786A patent/CN101745383B/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2700899R1 (en) * | 2017-08-18 | 2019-06-13 | China Petroleum & Chem Corp | Catalyst to produce light aromatic compounds with heavy aromatics, method to prepare the catalyst and use it |
| CN108212078A (en) * | 2018-01-16 | 2018-06-29 | 安徽海谱环保工程有限公司 | A kind of zeolite adsorbent preparation method and zeolite adsorbent |
| CN111495400A (en) * | 2020-04-24 | 2020-08-07 | 洛阳金达石化有限责任公司 | Preparation method of hydrogenation dearomatization catalyst |
| CN116060112A (en) * | 2021-10-29 | 2023-05-05 | 中国石油化工股份有限公司 | Hydrodearene catalyst and preparation method and application thereof |
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